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Agronomic behavior and nutritional value of Morus alba were evaluated at different ages. The variables for agronomic behavior: plant height (PH) (m); leaf biomass per plant (LBP g MS plant-1); stem biomass per plant (SBP g MS plant-1); leaf / stem ratio grams (SRG/ T g); forage biomass per plant (FBP) (g); productivity (Prod) (t MS ha-1). Chemical composition: dry matter (DM); organic matter (OM); crude protein (CP); neutral detergent fiber (NDF) and acid detergent fiber (ADF). In vitro digestibility: dry matter (IVDDM); organic matter (IVDOM); neutral detergent fiber (IVDNDF) and acid detergent fiber (IVDADF). Treatments: T1: Morus alba 40 days of harvest; T2: Morus alba 55 days of harvest; T3: Morus alba 70 days of harvest; T4: Morus alba 85 days of harvest. A Complete Random Design with four treatments and four repetitions was used. The highest (P

The morphoagronomic characteristics along with production yield, bromatological composition and the apparent in vitro digestibility of four cutting ages in Tithonia diversifolia during the dry season were evaluated. A Block Design was used, entirely at random, with four treatments and four repetitions per treatment: T1: Tithonia diversifolia 30 days of cutting; T2: Tithonia diversifolia 45 days of cutting; T3: Tithonia diversifolia 60 days of cutting y T4: Tithonia diversifolia 75 days of cutting. The best morphoagronomic characteristics (plant heights, leaf/stem ratio #, leaf weight per plant, stem weight per plant, leaf weight, stem weight, absolute growth rate, biomass per plant and production) were found at 75 days of cutting (1.71 m; 13.24 #; 99.00 g/MS; 217.92 g/MS; 0.61 g MS; 15.94 g MS; 7.46 g MS/day; 316.92 g MS/plant and 5.62 t DM/ha, respectively) and the best leaf/stem ratio was found at 30 days of cutting g (1.65 g/MS). The dry and organic matter shown their higher rates at 75 days of cutting (21.80 and 84.85%, respectively) whilst crude protein reached it at 30 and 45 days of cutting (24.68 and 22.60%, respectively). Neutral acid detergent fiber (P>0.05). Dry and organic matter digestibility (P>0.05). The best digestibilities for neutral detergent fiber and acid detergent fiber were found at 30 and 75 days of cutting (62.15 and 61.90; 61.18 and 59.70%, respectively). This results propose Tithonia diversifolia to be considered an alternative food source for animal feed Se evaluaron las características morfoagronómica, rendimiento de producción, composición bromatológica y la digestibilidad in vitro aparente de cuatro edades de corte en Tithonia diversifolia durante la época seca. Se utilizó un diseño de completamente al azar con cuatro tratamientos y cuatro repeticiones por tratamiento: T1: Tithonia diversifolia 30 días de corte; T2: Tithonia diversifolia 45 días de corte; T3: Tithonia diversifolia 60 días de corte y T4: Tithonia diversifolia 75 días de corte. Las mejores alturas de plantas, relación hoja/tallo #, peso de hoja por planta, peso de tallo por planta, peso de hoja, peso de tallo, tasa absoluta de crecimiento, biomasa por planta y la producción, fueron a los días 75 (1.71 m; 13.24 #; 99.00 g/MS; 217.92 g/MS; 0.61 g MS; 15.94 g MS; 7.46 g MS/día; 316.92 g MS/planta y 5.62 t MS/ha, respectivamente) y la relación hoja/tallo g a los días 30 (1.65 g/MS). La mejor materia seca y materia orgánica fue a los días 75 (21.80 y 84.85%, respectivamente). Así mismo, la proteína cruda a los días 30 y 45 (24.68 y 22.60%, respectivamente). La fibra detergente neutra y fibra detergente ácida, no registraron diferencias entre tratamientos (P>0.05). La digestibilidad de la materia seca y materia orgánica no presentaron diferencias entre tratamientos (P>0.05). Las mejores digestibilidades de la fibra detergente neutra y fibra detergente ácida fue a los días 30 y 75 (62.15 y 61.90; 61.18 y 59.70%, respectivamente). Se concluye que el forraje de Tithonia diversifolia puede considerarse una fuente alternativa alimenticia para la alimentación animal

The objetives were to determine the digestibility in vivo and the productive behavior in rabbits fed with foliage flour of Tithonia diversifolia in substitution of the balanced one. The treatments were: T0 = Balanced 100%; T1 = Balanced 75% + 25% Tithonia diversifolia flour; T2 = Balanced 50% + Tithonia diversifolia flour 50%; T3 = Balanced 25% + 75% Tithonia diversifolia flour and T4 = 100% Tithonia diversifolia flour. A complete randomized design (CRD) with four replications was applied. to assess digestible energy (DE). 20 male rabbits with an average weight of 1400 g were used and 40 weaned male rabbits with an average weight of 250 g were used for the productive performance. To establish the difference between means, the Tukey test (P